<!DOCTYPE html>
<html>
	<head>
		<title></title>
		<script src="../JS/jquery.js"></script>
	</head>
	<body>
		<select id="bankCode" onchange="Progressbar()">
			<option value="">请选择</option>
			<option value="aaa">111</option>
			<option value="bbb">222</option>
			<option>333</option>
		</select>
	</body>
	<script>
		
		function Progressbar(){
			var jq = $("#bankCode");
			console.log(jq);
			if(jq){
				alert(jq+"11");
				console.log(jq+"11");
			}else{
				alert(jq+"22");
				console.log(jq+"22");
			}
		}
		
	</script>
</html>